Justicia rusbyi (Lindau) Graham (1988: 605)

Soumya, Puliyakode & Sunojkumar, Purayidathkandy, 2019, Typification of three names in Justicia L. (Acanthaceae), Phytotaxa 391 (2), pp. 138-142 : 140

Justicia rusbyi (Lindau) Graham (1988: 605)

≡ Chaetochlamys rusbyi Lindau (1895: 491)

Lectotype (First-step designated by Graham, 1988: 605, Wasshausen & Wood, 2004: 76. Second-step designated here): — BOLIVIA, Guanai, May 1886, Rusby 1117, ( BM000617757 , isolectotypes F0077571 F, K000529479 , US00137245, NY00038824 ) Fig. 3 .

Notes:— Chaetochlamys rusbyi was described by Lindau, based on two specimens (Rusby 1117 & O. Kuntze s.n.) collected from two different localities of Bolivia. Thus, they are syntypes according to Art. 9.6 of ICN (Turland et al., 2018). Later, Graham (1988) transferred Chaetochlamys rusbyi to Justicia (as Justicia rusbyi ) and mentioned “ Type: Bolivia, Rusby 1117 (isosyntype BM) ”. Graham’s treatment was followed by Wasshausen & Wood (2004), who pointed out that all the syntypes are destroyed and only the isosyntypes are extant at BM, US and NY. However, the lectotype has not yet been designated by them. As Stafleu and Cowan (1983) indicated that Lindau’s specimens were mainly deposited at B, but partly destroyed. After an exhaustive search, we traced six sheets of Chaetochlamys rusbyi ; one each at BM, F, K, US (BM000617757, F0077571F, K000529479, US 00137245) and two at NY (NY00038824, NY00049762), whereas the syntype was not found anywhere. Among the materials traced, five sheets belong to the collection of “Rusby 1117” and remaining one belongs to Kuntze s.n. The duplicate of Rusby’s collection kept at BM (BM000617757) is selected here as the lectotype according to Art. 9.3 & 9.12 of ICN (Turland et al., 2018).

Figures

FIGURE 3. Lectotype of Justicia rusbyi (Lindau) V.A.W.Graham (BM000617757). © The Board of Trustees for the Natural History Museum (BM), U.K. Reproduced with permission.